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   Arcadia Reference - System Need
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   <h1>
    <a href="../ARCADIA/367b61ce88304d8f97c13325d886c0e8.html">
     System Need
    </a>
   </h1>
   <p style="margin-top:3px; margin-bottom:3px">
    <span class="elementMetaClass">
     Group of interactions - for synthesis purpose
    </span>
    <p>
    </p>
   </p>
   <p>
   </p>
   <h2>
    Set of grouped interactions
   </h2>
   <table>
    <tr>
     <th>
      Interaction
     </th>
     <th>
      Source activity
     </th>
     <th>
      Destination activity
     </th>
     <th>
      Description
     </th>
    </tr>
    <tr>
     <td id="idffb32c5e-25a8-4ddd-b326-c0c56dc9e129">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/41a0509098da42f982baf7aa18b11276.html">
       Perform an internal functional Analysis
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="id3f53e620-a5a9-46b3-bdd1-9aa2972522f4">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/41f885514a5c4202bd1ff179ddd5f04e.html">
       Validate each architecture against operational and functional/non functional need
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="id547601aa-f93e-4418-b1ff-41cbef560b9e">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/fa5549a19fd74b178e9ccbc9a6b09bdc.html">
       Check &amp; Ensure traceability/justification links with system need analysis
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="idb3fdbc3f-39cf-4152-bf91-6e23ca587f3d">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/a7d3444b95a34035a7aa5e20bf38c92f.html">
       Define IVVQ scenarios based on need analysis
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="ideff83d90-9e0e-4054-ae29-ebb3882abbca">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/80d506a135aa46cca632498694d10cd7.html">
       Define customer deliveries based on operational capabilities
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="id99648593-d7f0-4e1f-9c28-7a69fb4e7dd4">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/5a448db0178c4d71b53581f4c564bb2b.html">
       Formalise and link system requirements with functional Analysis
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="ida860aa07-26e9-43e4-9d96-1b02b58b38af">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/5e3c70efa7864bc7b3ce7ba84b252eed.html">
       Check Requirements against need and early architecture
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="idc30fee13-8dad-4a11-840e-cd57c9493171">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/b807afe5132b4ef4a5947973450b9468.html">
       Validate each architecture against operational and functional/non functional need
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="id69368748-8670-46f7-9c45-747212da42d7">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      Constraints
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/110e16347b4d412898a6fd5d186439fb.html">
       Identify non-functional constraints
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/6df608ea73994a8cbfbb0284c0591d53.html">
       Check each engineering/architecting decision against physical viewpoints
      </a>
     </td>
     <td>
      <p>
       [non-functional] constraints describe quantitative and non-functional aspects of the system need, such as latency requirements, safety issues, security constraints, IVVQ needs, product policy expectations, and more.
      </p>
      <p>
      </p>
      <p>
       They can be applied to any element of the need description, such as functions, exchanges, functional chains, data...
      </p>
      <p>
       A same consttraint can be applied to several elements.
      </p>
      <p>
      </p>
      <p>
       Later in the process, each architecture definition decision will be confronted to each of these constraints, so as to ensure compliance of the system architecture with regards to need.
      </p>
     </td>
    </tr>
    <tr>
     <td id="idaea50e45-fb24-46cf-b6af-aba290ba3e7c">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      Constraints
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/110e16347b4d412898a6fd5d186439fb.html">
       Identify non-functional constraints
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/a366b41ac273480d94292df4d430af3d.html">
       Check each engineering/architecting decision against logical viewpoints
      </a>
     </td>
     <td>
      <p>
       [non-functional] constraints describe quantitative and non-functional aspects of the system need, such as latency requirements, safety issues, security constraints, IVVQ needs, product policy expectations, and more.
      </p>
      <p>
      </p>
      <p>
       They can be applied to any element of the need description, such as functions, exchanges, functional chains, data...
      </p>
      <p>
       A same consttraint can be applied to several elements.
      </p>
      <p>
      </p>
      <p>
       Later in the process, each architecture definition decision will be confronted to each of these constraints, so as to ensure compliance of the system architecture with regards to need.
      </p>
     </td>
    </tr>
    <tr>
     <td id="ided47012f-49f3-4897-bd63-8aeeecd613e5">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      Constraints
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/110e16347b4d412898a6fd5d186439fb.html">
       Identify non-functional constraints
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <p>
       [non-functional] constraints describe quantitative and non-functional aspects of the system need, such as latency requirements, safety issues, security constraints, IVVQ needs, product policy expectations, and more.
      </p>
      <p>
      </p>
      <p>
       They can be applied to any element of the need description, such as functions, exchanges, functional chains, data...
      </p>
      <p>
       A same consttraint can be applied to several elements.
      </p>
      <p>
      </p>
      <p>
       Later in the process, each architecture definition decision will be confronted to each of these constraints, so as to ensure compliance of the system architecture with regards to need.
      </p>
     </td>
    </tr>
    <tr>
     <td id="iddf7e44e8-2e9e-418c-8f74-b89ecadaca71">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      Constraints
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/feba93f2a87b4126b60cd2bb94131458.html">
       Identify constraints likely to impact capability fulfilment
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/26a7075c687a4b91b4b7657c0b909820.html">
       Identify capability gaps of the state-of-the-art
      </a>
     </td>
     <td>
     </td>
    </tr>
    <tr>
     <td id="id2588981c-d0cd-4912-858e-03b026de56b2">
      <img alt="FunctionalExchange" src="../icon/FunctionalExchange.gif"/>
      System F&amp;NF Need
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/da496cf604c54f669adecd10e4010063.html">
       Validate functional Analysis
      </a>
     </td>
     <td>
      <img alt="PhysicalFunction" src="../icon/PhysicalFunction.gif"/>
      <a href="../ARCADIA/bea95df828bb41859edc7fbc49e9f8af.html">
       Define Product specification and commercial Offer variabilities
      </a>
     </td>
     <td>
     </td>
    </tr>
   </table>
   <h2>
    Diagrams displaying "System Need"
   </h2>
   <ul>
    <li>
     <a href="../ARCADIA/bbff04e5fae5489cad2dec382f2ec5fc.html#__cVNAJ2UEe2dueQ7R80uHg">
      2-PREPARE AND PERFORM DEVELOPMENT AND IVVQ
     </a>
    </li>
    <li>
     <a href="../ARCADIA/bd6945b4ae34413581335ae6b6f6f503.html#_Nug4UH1oEemlIbdF6f12PA">
      0-Overview of Engineering Activities
     </a>
    </li>
    <li>
     <a href="../ARCADIA/6a3284b8a66748a597631eb95e8e8c55.html#_d5BkQHcaEe2lVaNV4qOrAA">
      1 - First Level Tasks of Architecture Definition Perspectives
     </a>
    </li>
   </ul>
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